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CVE-2023-26777: Cross Site Scripting vulnerability found in : louislam Uptime Kuma v.1.19.6 and before allows a remote attacker to execute arbitrary commands via the description, title, footer, and incident creati...

CVE-2023-26777 · published 3 years ago

Summary

Cross Site Scripting vulnerability found in : louislam Uptime Kuma v.1.19.6 and before allows a remote attacker to execute arbitrary commands via the description, title, footer, and incident creation parameter of the status_page.js endpoint.

What to do

The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.

Affected software

Vendor	Product	Affected versions
uptime_kuma_project	uptime_kuma	<= 1.19.6 `cpe:2.3:a:uptime_kuma_project:uptime_kuma::::::::`

Original advisory text

References

http://packetstormsecurity.com/files/171699/Uptime-Kuma-1.19.6-Cross-Site-Script... URL
https://github.com/louislam/uptime-kuma/issues/2186 Third Party Advisory
https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/26xxx/CVE-2023-26777... Vendor Advisory
https://nvd.nist.gov/vuln/detail/CVE-2023-26777 Vendor Advisory

Fix within

Internet-facing 60 days

Internal At next upgrade

Not known to be exploited
Needs hands-on effort to exploit
Gives an attacker partial control

Severity

6.1 Medium

Exploitation

<1% chance of attack within 30 days

Type

CWE-79Cross-site Scripting (XSS)

Timeline

Published4 Apr 2023

Updated4 Nov 2026

First seen29 Sep 2026

Sources

CVE-2023-26777 · NVD

CVE-2023-26777 · OSV

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